Features

1) Unload Coupler is a patent pending product with a special mechanism which can make quick and easy connections between the socket and
      plug even under high air pressure with a small force. Prior research and test completed.

2) When the outside sleeve at the socket side is pulled back, the plug and socket are separated in an instant. On the other hand, disconnection
     of unload coupler is only performed after pushing the plug into the socket side. Thus, even if the sleeve of the socket side is touched or hit by
     an object while at work, the plug and socket of unload coupler will not be automatically separated, which helps prevent workplace accidents.